Re: PR/57421 CVS commit: src/sys/dev

[Matthias Petermann <mp%petermann-it.de@localhost>]

The following reply was made to PR kern/57421; it has been noted by GNATS.

From: Matthias Petermann <mp%petermann-it.de@localhost>
To: gnats-bugs%netbsd.org@localhost, kern-bug-people%netbsd.org@localhost,
 gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost
Cc: 
Subject: Re: PR/57421 CVS commit: src/sys/dev
Date: Sat, 10 Jun 2023 22:27:20 +0200

 This is a cryptographically signed message in MIME format.
 
 --------------ms070809090605050309090603
 Content-Type: text/plain; charset=UTF-8; format=flowed
 Content-Transfer-Encoding: 7bit
 
 Hello Michael,
 
 after weeks of extensive testing I did not see any performance issue or 
 deadlock after I installed your patched version.
 
 Are there any objective against pulling this up to netbsd-10?
 
 Kind regards
 Matthias
 
 
 
 On 19.05.23 17:45, Michael van Elst wrote:
 > The following reply was made to PR kern/57421; it has been noted by GNATS.
 > 
 > From: "Michael van Elst" <mlelstv%netbsd.org@localhost>
 > To: gnats-bugs%gnats.NetBSD.org@localhost
 > Cc:
 > Subject: PR/57421 CVS commit: src/sys/dev
 > Date: Fri, 19 May 2023 15:42:43 +0000
 > 
 >   Module Name:	src
 >   Committed By:	mlelstv
 >   Date:		Fri May 19 15:42:43 UTC 2023
 >   
 >   Modified Files:
 >   	src/sys/dev: vnd.c
 >   
 >   Log Message:
 >   Neither limit the number of requests for the page daemon.
 >   Otherwise you may deadlock when the backend needs to allocate
 >   memory and the page daemon needs to flush dirty vnd buffers.
 >   
 >   See PR 57421 for details.
 >   
 >   
 >   To generate a diff of this commit:
 >   cvs rdiff -u -r1.288 -r1.289 src/sys/dev/vnd.c
 >   
 >   Please note that diffs are not public domain; they are subject to the
 >   copyright notices on the relevant files.
 >   
 
 --------------ms070809090605050309090603
 Content-Type: application/pkcs7-signature; name="smime.p7s"
 Content-Transfer-Encoding: base64
 Content-Disposition: attachment; filename="smime.p7s"
 Content-Description: S/MIME Cryptographic Signature
 
 MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCC
 Cc8wggSSMIIDeqADAgECAgh7b+hpj4hxdjANBgkqhkiG9w0BAQsFADBmMQswCQYDVQQGEwJE
 RTEzMDEGA1UECgwqREdOIERldXRzY2hlcyBHZXN1bmRoZWl0c25ldHogU2VydmljZSBHbWJI
 MSIwIAYDVQQDDBlkZ25zZXJ2aWNlIENBIDIgVHlwZSBFOlBOMB4XDTIzMDIyNzA5Mjg0N1oX
 DTI0MDIyNzA5Mjg0N1owcDELMAkGA1UEBhMCREUxITAfBgNVBAUTGDQwMDAwMDAwNjNmYzdh
 MmMyMzY3MDZjNDEbMBkGA1UEAwwSTWF0dGhpYXMgUGV0ZXJtYW5uMSEwHwYJKoZIhvcNAQkB
 FhJtcEBwZXRlcm1hbm4taXQuZGUwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCv
 UU/+BQYtChQynhczrQa1mva2NJubL2tUGxh5fzYdir3xRlXM/Y55e42uXJnFevtrdCjC/3gD
 i5y+aMQTpUvsNlUC+LiSTqLMYnPwRi83L7+tCip4vn/mhHSgnpnwQFsJ6dwYELLTIOa0Hfy8
 34WD2U+ti71x4Ov2Ghq+FBX+lQusP8UZmvWP8OGzpn964cBWbAsmNk9JbOOf097U+fXs3cOX
 eqC5w+46iA+K/LMQY4TqCd7vw1X4eptT6dj/3CP9wxamdgu69C7TXpCLhjSet7k3f9nX2Gxa
 uqUCHbfxzzyRm7I9ytwpswQRZQYUZ5ztQYN0quOp/h5zk0rybKcFAgMBAAGjggE4MIIBNDAd
 BgNVHQ4EFgQU9XRgKeE4dGBY+hQKQCaHHxqp8ewwDAYDVR0TAQH/BAIwADAfBgNVHSMEGDAW
 gBTpxpPR1Q8GZHLqapY+uhDyVFSyeTBWBgNVHSAETzBNMEsGDCsGAQQB+ysCAQMCCDA7MDkG
 CCsGAQUFBwIBFi1odHRwOi8vc2VjNS5kZ25zZXJ2aWNlLmRlL3BvbGljaWVzL2luZGV4Lmh0
 bWwwPgYDVR0fBDcwNTAzoDGgL4YtaHR0cDovL3NlYzUuZGduc2VydmljZS5kZS9jcmwvY3Js
 Mi10eXBlLWUuY3JsMA4GA1UdDwEB/wQEAwIEsDAdBgNVHSUEFjAUBggrBgEFBQcDAgYIKwYB
 BQUHAwQwHQYDVR0RBBYwFIESbXBAcGV0ZXJtYW5uLWl0LmRlMA0GCSqGSIb3DQEBCwUAA4IB
 AQAIuNIxzvPQ003CW1tA4MkfWTtkCHajiB/37Cd9txEu3ielx/KBRYcLYM30W07UkFDLrP2V
 qx/ct5NyRv9gFBvtk790gsy4+hYcEIn4y0Gr0fxIdHgAjlAFvPt0Rj+oweDpIyqJ8xtZiN8H
 zhgHq2OYOp911f/nbgZ36Swela3GWghr19ZHirFp9b63DH91mKcFzZPZ1QeaFQ8Wcvb6Hld3
 6+MIbuai4eLX3nirv6fSCIXlPH+iI5iV2eJNZfU8jSpTrwv9sRpjrJjSVqOqoBYKuZU43g/n
 GKzADoJVVd/jGMNZka3Pfqd3JtAp2YZhh+d5S1ZpQFCCXnk6F6nY0C32MIIFNTCCBB2gAwIB
 AgIIVRxK12atJfYwDQYJKoZIhvcNAQELBQAwYTELMAkGA1UEBhMCREUxMzAxBgNVBAoMKkRH
 TiBEZXV0c2NoZXMgR2VzdW5kaGVpdHNuZXR6IFNlcnZpY2UgR21iSDEdMBsGA1UEAwwUZGdu
 c2VydmljZSBSb290IDc6UE4wHhcNMTYxMDI2MDkyMjQxWhcNMjQxMDI2MDkyMjQxWjBmMQsw
 CQYDVQQGEwJERTEzMDEGA1UECgwqREdOIERldXRzY2hlcyBHZXN1bmRoZWl0c25ldHogU2Vy
 dmljZSBHbWJIMSIwIAYDVQQDDBlkZ25zZXJ2aWNlIENBIDIgVHlwZSBFOlBOMIIBIjANBgkq
 hkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3KXylD90x6NH0pdmzmujzW0XA2GWhOGVd7yxq3v1
 OOOTrEWoTkT3j//S+J8nEyun1GsKQ06jmg8bV2MY6CTQvS5ykcVQf1JAX9IdubzdC9YleCoQ
 mmPE4pldM9slEpW9jbmeIHQVOvaiZGrKmI/gD/DnEDqNInY/Ta9XpaBw99otCQz5IQY/FX+n
 Om+5jcp/Mn2WL2Zc81dokP3L6OohS8dsIBu5gpDmfAQBxgxcOk9FCANAZOtGIUTEcSOxl4zM
 QUANmP116D+Hb0Aw7TDZitK+Q1F6H/O8Nm613LbkNm+MTcBSBK1aAELvH7Z105vYjrWjrFsi
 zGV+r+bM2kAagQIDAQABo4IB6jCCAeYwEgYDVR0TAQH/BAgwBgEB/wIBADAfBgNVHSMEGDAW
 gBQBDBYbdHLTPBTuJne3SRRT2PuLGzBbBggrBgEFBQcBAQRPME0wSwYIKwYBBQUHMAGGP2h0
 dHA6Ly9yb2NzcC1kZ24uZGduc2VydmljZS5kZTo4MDgwL2VqYmNhL3B1YmxpY3dlYi9zdGF0
 dXMvb2NzcDBqBgNVHSAEYzBhMF8GDCsGAQQB+ysCAQQCATBPME0GCCsGAQUFBwIBFkFodHRw
 Oi8vd3d3LmRnbnNlcnZpY2UuZGUvdHJ1c3RjZW50ZXIvcHVibGljL2RnbnNlcnZpY2UvaW5k
 ZXguaHRtbDCBmQYDVR0fBIGRMIGOMIGLoIGIoIGFhoGCbGRhcDovL2xkYXAuZGduc2Vydmlj
 ZS5kZTozODkvQ049Q1JMLTEsTz1ER04lMjBTZXJ2aWNlJTIwR21iSCxDPURFP2NlcnRpZmlj
 YXRlUmV2b2NhdGlvbkxpc3Q/YmFzZT9vYmplY3RDbGFzcz1jUkxEaXN0cmlidXRpb25Qb2lu
 dDAdBgNVHQ4EFgQU6caT0dUPBmRy6mqWProQ8lRUsnkwDgYDVR0PAQH/BAQDAgEGMBsGCSsG
 AQQBwG0DBQQOMAwGCisGAQQBwG0DBQEwDQYJKoZIhvcNAQELBQADggEBAKu8OfpFyfv8U2rd
 I4k1+Bg1+R1HkKIagLixn6LR3KkKqoxfBulFCNKuItLZ4R7ZXYWazQThK4E4RrE6DWdWNhp9
 BUa3K1FPS54UjMHdVydCXuhEUnRIeL13/GMSUBmSTwjyXK25YbntJpsDvZ24SnsBoJYbeVVk
 h00vL6uQ2t828RRupSHROtleCqnDAIsmNgXy/ILgj7HE1pebcSa42+BDaPZ0anc7FzRBt8ss
 4Jsr+s50OKRoE3uROql8eWzulwg6FCuCs9UvNj80eob3MSmaO5Citrrdgd27sFPMan8O9xDB
 /Ipr+C1v0sefcChJSo4o4x3TaxRv8DEaGw2MzMkxggOCMIIDfgIBATByMGYxCzAJBgNVBAYT
 AkRFMTMwMQYDVQQKDCpER04gRGV1dHNjaGVzIEdlc3VuZGhlaXRzbmV0eiBTZXJ2aWNlIEdt
 YkgxIjAgBgNVBAMMGWRnbnNlcnZpY2UgQ0EgMiBUeXBlIEU6UE4CCHtv6GmPiHF2MA0GCWCG
 SAFlAwQCAQUAoIIB4TAYBgkqhkiG9w0BCQMxCwYJKoZIhvcNAQcBMBwGCSqGSIb3DQEJBTEP
 Fw0yMzA2MTAyMDI3MjBaMC8GCSqGSIb3DQEJBDEiBCAr22djmZKHnXOgY/eVAd0ffNmUaPIU
 91JU7xXCXkrH1jBsBgkqhkiG9w0BCQ8xXzBdMAsGCWCGSAFlAwQBKjALBglghkgBZQMEAQIw
 CgYIKoZIhvcNAwcwDgYIKoZIhvcNAwICAgCAMA0GCCqGSIb3DQMCAgFAMAcGBSsOAwIHMA0G
 CCqGSIb3DQMCAgEoMIGBBgkrBgEEAYI3EAQxdDByMGYxCzAJBgNVBAYTAkRFMTMwMQYDVQQK
 DCpER04gRGV1dHNjaGVzIEdlc3VuZGhlaXRzbmV0eiBTZXJ2aWNlIEdtYkgxIjAgBgNVBAMM
 GWRnbnNlcnZpY2UgQ0EgMiBUeXBlIEU6UE4CCHtv6GmPiHF2MIGDBgsqhkiG9w0BCRACCzF0
 oHIwZjELMAkGA1UEBhMCREUxMzAxBgNVBAoMKkRHTiBEZXV0c2NoZXMgR2VzdW5kaGVpdHNu
 ZXR6IFNlcnZpY2UgR21iSDEiMCAGA1UEAwwZZGduc2VydmljZSBDQSAyIFR5cGUgRTpQTgII
 e2/oaY+IcXYwDQYJKoZIhvcNAQEBBQAEggEANGeAtWAn7LfvoIEYSHN86LG7o47jMM1CFAgX
 MEdy7NfQxHP8W6BTQjIaodJOoagV+zeAPgsf/Wef75LFK8bChmyRWf+epIc5/RmpkuzQQCq8
 G6OzTCumuDXBOPbvnvpBpwsO/rI/gV19d0oGHhyfi8g7qGakF4csphKYr/zWthV0IV5HGPiK
 qFqwOFfLKvnkIDiuSlh8p8ylqbcOD0RxDeA6bp1tgZjsF5MXYxVUWaPNHZzTrA8xzzTSPGME
 ZwckK00oAW1w8knzztr4gaPdb9WztFcLXwMsoYEiYkycgfTlrYyAefigKB+R+SzSO0/7oUeW
 QECaMgGWoJTzO4B3xwAAAAAAAA==
 --------------ms070809090605050309090603--